252000251 has 4 divisors (see below), whose sum is σ = 252544992. Its totient is φ = 251455512.

The previous prime is 252000247. The next prime is 252000257. The reversal of 252000251 is 152000252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252000251 - 2² = 252000247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252000257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271676 + ... + 272601.

It is an arithmetic number, because the mean of its divisors is an integer number (63136248).

Almost surely, 2^252000251 is an apocalyptic number.

252000251 is a deficient number, since it is larger than the sum of its proper divisors (544741).

252000251 is an equidigital number, since it uses as much as digits as its factorization.

252000251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544740.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 252000251 is about 15874.5157721425. The cubic root of 252000251 is about 631.6361694754.

Subtracting from 252000251 its reverse (152000252), we obtain a palindrome (99999999).

The spelling of 252000251 in words is "two hundred fifty-two million, two hundred fifty-one", and thus it is an aban number.